Ionix
Hi Mate, any tips on building a home made turbo manifold?
Pretty much any design will work.
Doesn't have to be perfect lengths and bends.
That said
Just depends on how involved you want to get with it
A tubular design with nice flowing bends will be more efficient and looks alot nicer.
Main place to get it right is the transition into the turbo collector.
Steam pipe is probably the best material to use and its nice to work with and easy to weld and wont warp or sag with heat.
Some of the heap Chinese stainless manifolds look nice but a prone to cracking.
Just consider firewall clearance for dunp pipe. Clutch cable clearance and where the turbo drain back will run when you are designing it.
Other than that after you have it all tacked up . Be sure to use either a spare old head with the header flange bolted to it. This will help prevent the flange plate warping or if no spare head better option is to have it clamped nicely to thick steel bench or plate when welding. Although you can get it machined after welding to ensure a nice seal if you wish.
That is only a couple of basic points . Sing out if you think i can help out. Anymore!
Cheers